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Unformatted text preview: 121. MATH1010: Chapter 2 cont… 3 Application: According to Ohm’s law, when a voltage of V volts is applied across a resistor with a resistance of R ohms, a current of R V I = amperes flows through the resistor. Suppose that the voltage remains constant at 3.0 volts, but temperature variations cause the resistance to vary from a value of 7.5 ohms. a) If the current is not allowed to vary by more than 001 . ± ampere, what variation of δ ± from the value of 7.5 ohms is allowable for the resistance? b) In the context of the deltaepsilon definition of L x f a x = → ) ( lim , what are x , ) ( x f , a , L , ε , and ? [Source: Modified from “Calculus: Early Transcendentals” 8 th ed. by H. Anton, I. Bivens, and S. Davis, 2005] Example:...
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 Spring '08
 Kim
 Calculus, Derivative, Limits, ohm, lim, Cont, precise definition

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